Current - Peak Pulse (10/1000µs):	2.1A
Supplier Device Package:	SOD-123W
Package / Case:	SOD-123W
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	200W
Series:	SMF
Voltage - Clamping (Max) @ Ipp:	95V
Voltage - Breakdown (Min):	64.4V
Voltage - Reverse Standoff (Typ):	58V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active

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Introduction

A SMF58A RVG is a type of transzorb or transient voltage suppressor diode. It is a heat sinked, high voltage switching diode primarily for ESD and other pulse protection applications. These diodes are characterized by high surge current capability and low dynamic resistance.

Technical Attributes

A SMF58A RVG features a rated avalanche current, forward voltage, and maximum peak pulse current up to 500A. The maximum reverse voltage is 45V. The stability of the voltage over temperature is very excellent. It is available in the standard SOT-323 package, so is perfect for compact applications.

Applications

SMF58A RVG is suitable for a wide range of applications, such as protecting microprocessors, laptops, IDC/DDR memory modules, and telecom/datacom equipment against ESD and other transient spikes. This diode can also be used in motor control systems, surge protection circuits, and over-voltage protection. It is also being used in automotive and medical applications.

Working Principle

The working principle of the SMF58A RVG involves the absorption of transient energy by clamping the voltage. When a high voltage pulse is applied, the diode senses the rise in voltage and turns on instantly. This creates a clamping effect which reduces the peak voltage. The diode\'s internal capacitance and inductance also absorb the energy by storing it and dissipating it through heat. The breakdown voltage rating of the diode determines the amount of current it can handle and the energy it can dissipate.

Conclusion

SMF58A RVG is one of the best-in-class TVS diodes available today. It provides excellent protection against ESD, over-voltage, and other transient spikes. With its extremely low dynamic resistance, high surge current capabilities, and great stability in all temperatures, it is the perfect device for a wide range of applications.

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